/*
 * Approval flow — the fold-down stepper at the top of a bill. Collapsed, the <summary> is a
 * one-line "what's next"; open, it shows the vertical stepper (avatar · name · role · status
 * pill) on a dotted canvas, à la the LedgerBee mock. Built on the design tokens + .badge pills.
 */

@layer components {
  /* The always-on approval card wraps the fold-down flow (or an empty state), a ⋮ menu to
     appoint/rearrange, the actions, and the postability blockers. */
  .approval-card {
    padding: 0;
  }

  .approval-card__bar {
    display: flex;
    align-items: flex-start;
  }

  .approval-card__bar > .approval-flow {
    flex: 1 1 auto;
    min-width: 0;
  }

  .approval-card__empty {
    flex: 1 1 auto;
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-4);
    font-size: var(--text-sm);
    color: var(--color-text-body);
  }

  /* The ⋮ trigger (a modal opener) — a quiet icon button, top-right. */
  .approval-card__menu {
    flex: 0 0 auto;
    margin: var(--space-3) var(--space-3) 0 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2rem;
    height: 2rem;
    padding: 0;
    border: 0;
    border-radius: var(--radius-md);
    background: transparent;
    color: var(--color-slate-500);
    cursor: pointer;
  }

  .approval-card__menu:hover {
    background: var(--color-slate-100);
    color: var(--color-text-heading);
  }

  .approval-card__menu svg {
    width: 1.25rem;
    height: 1.25rem;
  }

  .approval-card__actions {
    display: flex;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-4);
    border-top: 1px solid var(--color-border);
  }

  .approval-card__blockers {
    padding: var(--space-3) var(--space-4) var(--space-4);
    border-top: 1px solid var(--color-border);
    font-size: var(--text-sm);
    color: var(--color-text-body);
  }

  .approval-card__blockers-title {
    margin: 0 0 var(--space-1);
    font-weight: 600;
  }

  .approval-card__blockers ul {
    margin: 0;
    padding-left: var(--space-4);
  }

  .approval-flow {
    padding: 0;
  }

  /* The collapsed summary row — its own click target; strip the native disclosure marker. */
  .approval-flow__summary {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-3);
    padding: var(--space-4);
    cursor: pointer;
    list-style: none;
    font-size: var(--text-sm);
  }

  .approval-flow__summary::-webkit-details-marker {
    display: none;
  }

  .approval-flow__lead {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    min-width: 0;
  }

  .approval-flow__icon {
    width: 1.25rem;
    height: 1.25rem;
    color: var(--color-warning);
    flex-shrink: 0;
  }

  .approval-flow__summary-text {
    font-weight: 600;
    color: var(--color-text-heading);
  }

  .approval-flow__cue {
    color: var(--color-text-body);
    font-weight: 400;
  }

  .approval-flow__chevron {
    width: 1.25rem;
    height: 1.25rem;
    color: var(--color-slate-500);
    flex-shrink: 0;
    transition: transform var(--duration-base) var(--ease-out);
  }

  .approval-flow[open] .approval-flow__chevron {
    transform: rotate(180deg);
  }

  /* The expanded body — dotted canvas. */
  .approval-flow__body {
    padding: var(--space-2) var(--space-5) var(--space-5);
    border-top: 1px solid var(--color-border);
    background-image: radial-gradient(var(--color-slate-200) 1px, transparent 1px);
    background-size: 16px 16px;
  }

  .approval-flow__group + .approval-flow__group {
    margin-top: var(--space-4);
  }

  .approval-flow__quantifier {
    margin: var(--space-4) 0 var(--space-1);
    font-size: var(--text-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    color: var(--color-text-body);
  }

  /* The stepper — nodes connected top-to-bottom through their avatars. */
  .approval-stepper {
    list-style: none;
    margin: 0;
    padding: 0;
  }

  .approval-stepper__node {
    position: relative;
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-2) 0;
  }

  /* The connector line running down through the avatar centres. */
  .approval-stepper__node:not(:last-child)::after {
    content: "";
    position: absolute;
    left: 19px;
    top: 50%;
    width: 2px;
    height: 100%;
    background: var(--color-slate-200);
    z-index: 0;
  }

  .approval-stepper__avatar {
    position: relative;
    z-index: 1;
    display: inline-flex;
  }

  /* A role slot with no signer yet — a glyph tile instead of a face. */
  .approval-stepper__role-glyph {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--color-slate-100);
    color: var(--color-slate-500);
  }

  .approval-stepper__role-glyph svg {
    width: 1.25rem;
    height: 1.25rem;
  }

  .approval-stepper__who {
    display: flex;
    flex-direction: column;
    min-width: 0;
    flex: 1 1 auto;
  }

  .approval-stepper__name {
    font-weight: 500;
    color: var(--color-text-heading);
  }

  .approval-stepper__role {
    font-size: var(--text-xs);
    color: var(--color-text-body);
  }

  /* Upcoming / not-reached steps read muted; the current step stands out in bold. */
  .approval-stepper__node--upcoming,
  .approval-stepper__node--halted {
    opacity: 0.55;
  }

  .approval-stepper__node--awaiting .approval-stepper__name {
    font-weight: 700;
  }

  .approval-stepper__pill {
    flex-shrink: 0;
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
  }

  .approval-stepper__pill-icon {
    width: 0.875rem;
    height: 0.875rem;
  }
}